<template>
  <div>
    <h3>App组件</h3>
    <TabBar a="1" b="2" c="3" class="abc" style="color:red" @click="handler" />
  </div>
</template>

<script setup>
import TabBar from './TabBar.vue';

const handler = () => {
  console.log('父亲-handler')
}

</script>